Park Bank is about to become the biggest bank based in the city of Milwaukee.

Although there are suburban banks larger than Park Bank, the acquisition of Marshall & Ilsley Corp. by Toronto-based BMO Financial Group will leave Park Bank as the biggest within the city borders, as ranked by assets.

Park Bank, well known for its business lending in the community, had assets of more than $784 million at the end of the third quarter. M&I has almost $52 billion.

Park Bank is not affiliated with The Park Bank, which is based in Madison.

Green Bay's Associated Bank will become the largest bank based in Wisconsin when the BMO deal with M&I closes in July. Associated has assets of more than $22 billion.